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226648169 = 11191099949
BaseRepresentation
bin11011000001001…
…10000001101001
3120210110220211122
431200212001221
5431010220134
634253505025
75421322556
oct1540460151
9523426748
10226648169
11106a34140
1263aa2175
1337c57757
142215ba2d
1514d7002e
hexd826069

226648169 has 16 divisors (see below), whose sum is σ = 262680000. Its totient is φ = 193389120.

The previous prime is 226648159. The next prime is 226648171. The reversal of 226648169 is 961846622.

It is a cyclic number.

It is not a de Polignac number, because 226648169 - 24 = 226648153 is a prime.

It is a super-2 number, since 2×2266481692 = 102738785022105122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (226648109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17807 + ... + 27755.

It is an arithmetic number, because the mean of its divisors is an integer number (16417500).

Almost surely, 2226648169 is an apocalyptic number.

It is an amenable number.

226648169 is a deficient number, since it is larger than the sum of its proper divisors (36031831).

226648169 is a wasteful number, since it uses less digits than its factorization.

226648169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10088.

The product of its digits is 248832, while the sum is 44.

The square root of 226648169 is about 15054.8387238124. The cubic root of 226648169 is about 609.7016986351.

The spelling of 226648169 in words is "two hundred twenty-six million, six hundred forty-eight thousand, one hundred sixty-nine".

Divisors: 1 11 19 109 209 1199 2071 9949 22781 109439 189031 1084441 2079341 11928851 20604379 226648169